"An overview of Google Workspace" matching MCP connectors:

Federated search of books and papers, BibTeX/RIS citations, open-access retrieval and reading.

Conformance checker for MCP servers. Free, no key, verdicts recomputable and re-measured daily.

290+ quality-scored API capabilities for AI agents across 27 countries via MCP.

Search otwarteAPI.pl — a catalog of 53 official public Polish and EU APIs (VAT white list, KRS, GUS, NBP, ECB, Eurostat, VIES and more), curated for AI agents. One tool: find the right API by natural-language query. No API key, no signup.

Neutral, verification-gated MCP directory of Japan construction contractors (KIRA-audited).

Read-only breach intel, full history 2007-today: reports THAT an org was breached, never the data.

Paid-verified directory of x402 APIs — we pay endpoints real USDC and confirm settlement on-chain.

Search and cite US law from official sources, then form an LLC or nonprofit with free agent tools.

DXF and PDF/X-4 for AI agents: structured facts, PNG renders, an interactive in-chat viewer.

Author and validate Calaf workspace seeds against the app's real importer. No account needed.

Discovery, OAuth, project operations, and exact project MCP handoff for Spala backend projects.

Crevio's MCP server lets an agent run a real online business, not just read from one. It exposes a delegation surface (ask_crevio, start_task, wait_for_run, send_message, resolve_approvals) plus code_search and code_execute for calling the full Crevio REST API - products, customers, orders, email, socials, and sites.

Measured share of answer for 24 crypto and Web3 brands. An open dataset, not an audit of your site.

Measured share of answer for 20 SaaS brands. An open dataset, not an audit of your site.

CLSTR reads 100,000+ articles a day from 40,000+ sources in 170+ countries and deduplicates them into single events, then links related events into ongoing situations with a maintained summary and a full timeline. An agent can answer what has happened over the last six weeks, not just what a single headline says right now.

Goal decomposition where every "done" is proven by evidence and checked by a judge.

SSRF-safe web intelligence: 4 outcomes, 43 paid x402 tools, 3 free tools and a URL preview.

Daily editorials, exit costs, depth concentration, tiers, and sealed records. No commodity futures.

Neutral fairness computation for agents: two or more parties submit sealed inputs, a published deterministic algorithm runs (fair division, verifiable random selection, Shapley shares), and every party receives an identical signed certificate anyone can re-run and verify for free.

Live censorship, China economic, and tamper-evident AI evaluation tools with bounded analysis.